DALLAS, Texas -- More details have surfaced in connection with an alleged domestic violence incident between Cleveland Browns quarterback Johnny Manziel and his ex-girlfriend.

According to an affidavit, Colleen Crowley claims she lost hearing in her left ear.

In a four-page sworn statement, Crowley explains what happened, which was used to file a protective order.

Manziel must stay away from her for two years. The statement, posted online by NBC 5 in Dallas, explains Crowley lost hearing in her left ear on Jan. 29, 2016 in Dallas.

"He grabbed me by my hair and threw me back into the car and got back in himself," Crowley said in the statement. "He hit me with his open hand on my left ear for jumping out of the car. I realized immediately that I could not hear out of that ear, and I still cannot today, two days later."

Last week, WFAA 8 in Dallas released an exclusive report detailing how the Heisman Trophy winner told Crowley, "shut up or I'll kill us both."

The two had spent the night out with friends in Dallas prior to the alleged assault, which began in Manziel's hotel room in the early morning hours, sources say in Crowley's affidavit. The alleged assault then continued to her Forth Worth apartment.

Crowley and Manziel dated for two years and lived together four months prior to breaking up.